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Moose352
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For those who haven't seen it, if you put a little soap detergent in a dish of milk with some food coloring in it, you will see the food coloring swirling around and away. Why does this occur?
The purpose of the Milk Detergent Experiment is to demonstrate the effects of detergent on the surface tension of milk. This experiment can also be used to explain how detergent works to remove oil and grease from surfaces.
To conduct the Milk Detergent Experiment, you will need a shallow dish, whole milk, food coloring, dish detergent, and a toothpick or cotton swab.
First, pour the milk into the shallow dish and let it settle. Then, add a few drops of food coloring to the milk. Next, dip the toothpick or cotton swab in the dish detergent and gently touch it to the surface of the milk. Observe the changes in the milk as the detergent breaks the surface tension.
The movement of the milk and food coloring is caused by the detergent breaking the surface tension of the milk. This allows the food coloring to mix with the milk and create the swirling effect.
The Milk Detergent Experiment demonstrates the properties of surface tension, which is the force that causes the surface of a liquid to behave like a thin elastic sheet. The detergent disrupts this force, allowing the food coloring to mix with the milk and creating the swirling patterns.